Home / 38,993,101.79-53,812,161.54-21,589,446.51

Finding the Fourth Proportional to 38,993,101.79, 53,812,161.54 and 21,589,446.51

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Solution

The fourth proportional to 38,993,101.79, 53,812,161.54 and 21,589,446.51 is: 29,794,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,993,101.79 : 53,812,161.54 = 21,589,446.51 : x
  2. Step 2: Convert to fraction form
    38,993,101.79/53,812,161.54 = 21,589,446.51/x
  3. Step 3: Cross multiply
    38,993,101.79x = 53,812,161.54 × 21,589,446.51
  4. Step 4: Simplify right side
    38,993,101.79x = 1,161,774,783,155,309.25
  5. Step 5: Solve for x
    x = 1,161,774,783,155,309.25/38,993,101.79
  6. Step 6: Final answer
    x = 29,794,366.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.